Curtain controller



1. Curtain controller

1.1 : Front

1.2 : Back

1.3 : Left

1.4 : Right

1.5 : Top

1.6 : Bottom

1.7 : Perspective

The broken line portion of the reproductions represent portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a curtain controller, as shown and described. 